A long time ago in the late 1800s people killed the pigs to get the bladders from the pigs. They used it to make a rugby ball. Do you know what a bladder is? A bladder is a thing that holds the pigs pee. Why are Rugby Balls are an oval shape?They are like that because the pig's bladder is not a perfect circle.
They used to use these balls to play a game called Bigside. This game was like a combination of rugby and soccer except you can only catch the ball if it is in the air. Once you catch the ball you can kick it anywhere or you can kick for a goal under the crossbar.